ave_core/subject/
error.rs

1use thiserror::Error;
2
3#[derive(Debug, Error, Clone)]
4pub enum SubjectError {
5    // Subject state errors
6    #[error("subject is no longer active")]
7    SubjectInactive,
8
9    #[error("subject schema id is invalid")]
10    InvalidSchemaId,
11
12    // Signature and verification errors
13    #[error("signature verification failed: {context}")]
14    SignatureVerificationFailed { context: String },
15
16    #[error("incorrect signer: expected {expected}, got {actual}")]
17    IncorrectSigner { expected: String, actual: String },
18
19    #[error("validation request signature is invalid")]
20    InvalidValidationRequestSignature,
21
22    #[error("validator signature could not be verified")]
23    InvalidValidatorSignature,
24
25    // Event and ledger errors
26    #[error(
27        "event is not the next one to be applied: expected sn {expected}, got {actual}"
28    )]
29    InvalidSequenceNumber { expected: u64, actual: u64 },
30
31    #[error("previous ledger event hash does not match")]
32    PreviousHashMismatch,
33
34    #[error("ledger event hash mismatch: expected {expected}, got {actual}")]
35    LedgerHashMismatch { expected: String, actual: String },
36
37    #[error("event type does not match protocols")]
38    EventProtocolMismatch,
39
40    #[error("event should be {expected} but got {actual}")]
41    UnexpectedEventType { expected: String, actual: String },
42
43    // Protocol-specific errors
44    #[error("fact event received but should be confirm or reject event")]
45    UnexpectedFactEvent,
46
47    #[error("transfer event received but should be confirm or reject event")]
48    UnexpectedTransferEvent,
49
50    #[error("EOL event received but should be confirm or reject event")]
51    UnexpectedEOLEvent,
52
53    #[error("confirm event received but new_owner is None")]
54    ConfirmWithoutNewOwner,
55
56    #[error("reject event received but new_owner is None")]
57    RejectWithoutNewOwner,
58
59    // Validation errors
60    #[error("quorum is not valid")]
61    InvalidQuorum,
62
63    #[error("validation request hash does not match")]
64    ValidationRequestHashMismatch,
65
66    #[error("validators and quorum could not be obtained: {details}")]
67    ValidatorsRetrievalFailed { details: String },
68
69    // Metadata errors
70    #[error("event metadata does not match subject metadata")]
71    MetadataMismatch,
72
73    #[error("validation metadata must be of type Metadata in creation event")]
74    InvalidValidationMetadata,
75
76    #[error("in creation event, sequence number must be 0")]
77    InvalidCreationSequenceNumber,
78
79    #[error("previous ledger event hash must be empty in creation event")]
80    NonEmptyPreviousHashInCreation,
81
82    // Patch and state errors
83    #[error("failed to apply patch: {details}")]
84    PatchApplicationFailed { details: String },
85
86    #[error("failed to convert ValueWrapper into Patch: {details}")]
87    PatchConversionFailed { details: String },
88
89    #[error("evaluation was satisfactory but there was no approval")]
90    MissingApprovalAfterEvaluation,
91
92    #[error("evaluation was not satisfactory but there is approval")]
93    UnexpectedApprovalAfterFailedEvaluation,
94
95    // Governance-specific errors
96    #[error("failed to convert properties into GovernanceData: {details}")]
97    GovernanceDataConversionFailed { details: String },
98
99    #[error(
100        "schema_id is Governance, but cannot convert properties: {details}"
101    )]
102    GovernancePropertiesConversionFailed { details: String },
103
104    #[error("{what} '{who}' is not a member")]
105    NotAMember { what: String, who: String },
106
107    #[error("schema '{schema_id}' has no policies")]
108    SchemaNoPolicies { schema_id: String },
109
110    #[error("schema '{schema_id}' is not a schema")]
111    InvalidSchema { schema_id: String },
112
113    // Tracker-specific errors
114    #[error("number of subjects that can be created has not been found")]
115    MaxSubjectCreationNotFound,
116
117    #[error("protocols data is for Governance but this is a Tracker")]
118    GovernanceProtocolsInTracker,
119
120    #[error("protocols data is for Tracker but this is a Governance")]
121    TrackerProtocolsInGovernance,
122
123    // Hash errors
124    #[error("failed to create hash: {details}")]
125    HashCreationFailed { details: String },
126
127    #[error("validation request hash could not be obtained: {details}")]
128    ValidationRequestHashFailed { details: String },
129
130    #[error("modified metadata hash could not be obtained: {details}")]
131    ModifiedMetadataHashFailed { details: String },
132
133    // Actor and system errors
134    #[error("actor not found: {path}")]
135    ActorNotFound { path: String },
136
137    #[error("unexpected response from {path}: expected {expected}")]
138    UnexpectedResponse { path: String, expected: String },
139
140    #[error("helper not found: {helper}")]
141    HelperNotFound { helper: String },
142
143    #[error("cannot obtain {what}")]
144    CannotObtain { what: String },
145
146    // General errors
147    #[error("{0}")]
148    Generic(String),
149}
150
151impl From<String> for SubjectError {
152    fn from(s: String) -> Self {
153        Self::Generic(s)
154    }
155}
156
157impl From<&str> for SubjectError {
158    fn from(s: &str) -> Self {
159        Self::Generic(s.to_string())
160    }
161}
ave_core/subject/error.rs

ave_core/subject/
error.rs
